//-----------------------------------------------
//	module name: delay4U
//	author: Fu Tong , Baoxia Wan 
//	version: 1nd version (2021-11-120)
//	description: 
//		eight unit delay with single direction
//-----------------------------------------------
`timescale 1ns / 1ps

module delay4U(inR, outR);

input   inR;

output  outR;

wire w_req_0;
wire w_req_1, w_req_2;

delay1U delay0(inR, w_req_0);
DEL1M4HM delay1 ( .A(w_req_0), .Z(w_req_1) );
delay1U delay3(w_req_1, outR);

//DEL4UHDV1 delay1 ( .I(inR), .Z(outR) );
//DEL1M4HM delay1 ( .A(inR), .Z(outR) );
endmodule

